Comparison of Hercules 317 1953 and Velocette Valiant 1963 [S]ave
| Attribute |  Hercules 317 1953 × |  Velocette Valiant 1963 × |
|---|---|---|
| General | ||
| Production from (year) | 1953 | 1963 |
| Make | Hercules | Velocette |
| Model | Hercules 317 | Velocette Valiant |
| Category | Sport | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Two cylinder boxer, four-stroke |
| Fuel system | Carburettor. Bing 26mm | Carburettor |
| Displacement (cm³) | 197 | 192 |
| Power (kw) | 8 | 8.8 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Shaft drive (cardan) |
| Bore (mm) | 62 | 50 |
| Stroke (mm) | 66 | 49 |
| Fuel control | - | Overhead Valves (OHV) |
| Compression | - | 8.0:1 |
| Chassis | ||
| Front suspension | Telescopic | Hydralic telescopic forks |
| Rear suspension | - | Twin shock |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | Single cradle | - |
| Front tyre | 3-19 | - |
| Rear tyre | 3-19 | - |
| Seat | Two | - |
| Wheels | Spoked | - |
| Other | ||
| Starter | Kick | - |
| Dimensions | ||
| Dry weight (kg) | 120 | 116 |
| Power/weight ratio | 0.0667 | 0.0759 |
| Performance | ||
| Top speed (km/h) | 95 | 110 |
| Fuel capacity (l) | 13 | 12 |
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